Mangavilai comes under Dharmapuram Panchayat. It is situated 1 km North of the Arabian Sea and 9 km distance from Nagercoil, which is the district Headquartersand 20 km distance from Kanyakumari, which is the southernmost tip of the land. It is surrounded by some other small villages namely Pilavilai in the north, Neduvilai in the east, Kaliyayanvilai in the south and Panavilai in the west.
Mangavilai is one of the small villages in Kanyakumari district. There is generally only one relationship in the village i.e. brother and sister's relationship. This is the main feature of the village. It has the population of around 850 peoples. The village has a name board in the entrance written in three languages (Hindi, Tamil and English).
Ref : https://en.wikipedia.org/wiki/Mangavilai